NCT07795346 ATG-022 CLDN18.2 positive Gastroesophageal junction adenocarcinoma Clinical Landscape Report 2026: Design, Endpoints, Sponsor and Readout Outlook
Turn a newly registered trial into a decision-ready clinical landscape. This report examines NCT07795346 using PatSnap Clinical Trials MCP for protocol design and endpoint evidence, with Drug & Asset MCP and Company & Deal Intelligence MCP used as the companion asset and sponsor enrichment workflow. Explore PatSnap MCP Servers to reproduce the research sequence inside an AI workflow.
MCP evidence snapshot: 1 September 2026. Trial records, recruitment status and projected dates can change after the snapshot and should be rechecked before operational decisions.
Why NCT07795346 is a hot trial to watch
CLDN18.2 positive Gastroesophageal junction adenocarcinoma is being segmented by mechanism, treatment setting, geography and endpoint architecture. NCT07795346 is notable because it evaluates ATG-022 in a Phase 3 design sponsored by Antengene Corp. Ltd.. The main development question is whether the protocol can translate its rationale into a clinically interpretable and operationally credible readout.
Trial landscape snapshot
| Field | Indexed detail |
|---|---|
| Registration | NCT07795346 |
| Official title | A Study of ATG-022 Compared With Investigator's Choice of Treatment in Claudin 18.2-Positive Advanced Gastric or Gastroesophageal Junction Adenocarcinoma (CLINCH-3) |
| Phase / status | Phase 3 / Not yet recruiting |
| Intervention | ATG-022 |
| Sponsor | Antengene Corp. Ltd. |
| Geography | China |
| Enrollment | 380 |
| Primary endpoint | Progression-Free Survival(PFS ) |
| Endpoint time frame | From randomization to first PD or death. Tumour assessments at baseline, q6w (±1w) during treatment, q12w (±1w) after 12m, q24w (±1w) after 24m, until PD/death/study end (~228 OS events, ~1yr after LPI). |
| Primary completion / readout proxy | Not reported |
Protocol design and endpoint interpretation
This is a randomized, controlled, open-label, multicenter Phase III study to evaluate the efficacy and safety of ATG-022 compared with Investigator's Choice in participants with CLDN18.2-positive advanced gastric or gastroesophageal junction adenocarcinoma.
Allocation is Randomized, masking is None (Open Label), and the intervention model is Parallel Assignment. Planned enrollment of 380 participants across China shapes statistical precision, execution risk and external validity. Interpretation should account for baseline risk, prior therapy, assessment schedule, missing-data handling and clinical relevance—not only statistical significance.
- Progression-Free Survival(PFS ) (From randomization to first PD or death. Tumour assessments at baseline, q6w (±1w) during treatment, q12w (±1w) after 12m, q24w (±1w) after 24m, until PD/death/study end (~228 OS events, ~1yr after LPI).) — PFS is defined as the duration from randomization to the first objective documentation of PD or death from any cause
- Overall Survival(OS) (From randomization to death. Survival follow-up q3m (±14d) until death/study termination (~228 OS events).) — Duration from randomization to death from any cause
Readout outlook and evidence gap
The current protocol points to Not reported as the best available readout proxy. Because this is an active or newly posted study, a trial-specific result citation is not included until a normalized clinical-trial-result record becomes available. That gap is itself operationally important: teams should monitor first result indexing, conference abstracts, protocol amendments and changes to the primary-completion date.
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Asset and sponsor context
Drug & Asset MCP profile: ATG-022 is indexed as No normalized modality returned, with target No normalized target returned, mechanism No normalized mechanism returned, and global highest development status No normalized global status returned.
Company & Deal Intelligence MCP profile: Antengene Corp. Ltd. is resolved to a normalized organization record in Hong Kong SAR, China. The organization workflow adds identity, location, portfolio and partnering context where available.
The sponsor profile matters because scientific rationale alone does not determine development value. Manufacturing readiness, portfolio fit, geographic reach, partnering capacity and the ability to fund confirmatory development can determine whether a positive signal becomes a competitive asset.
White space around this program
- Sharper patient selection: prospective biomarker or phenotype definitions that identify who is most likely to benefit.
- Clinically interpretable endpoints: outcomes connecting activity with function, symptoms, survival or treatment burden.
- Comparator relevance: evidence against the most decision-relevant contemporary standard of care.
- Broader external validity: evidence across additional geographies, demographic groups and real-world settings.
- Operational differentiation: a development path that closes the readout gap without sacrificing safety or durability.
What to monitor next
Monitor recruitment, enrollment changes, protocol amendments, endpoint hierarchy, primary-completion timing, first result indexing, asset ownership and sponsor partnerships. A change in endpoint, population or ownership can alter the probability of success before a headline data release.
Bottom line
NCT07795346 provides a focused lens on CLDN18.2 positive Gastroesophageal junction adenocarcinoma development. Its value will be determined by whether ATG-022 can convert the current Phase 3 design into evidence that is clinically meaningful, operationally credible and differentiated from competing programs.
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